Formulated classical electron theory uniting field electrodynamics with point charges.

Initiated classical equipartition studies of blackbody cavity energy density.

FitzGerald proposes physical length contraction of moving bodies to explain the Michelson-Morley null result.

Nernst derives the cell potential equation governing chemical concentration and electrode electromotive force.

Published updated Periodic Table incorporating newly discovered Gallium and Scandium.

Introduced chemical Activation Energy (Ea) required to reach transition states.

Rydberg formulates 1/lambda = R (1/n1^2 - 1/n2^2), unifying atomic emission lines across elements.

Heaviside reduces Maxwell's 20 quaternion equations to the 4 modern vector differential equations.

Proved radio waves undergo reflection, refraction, and travel at light speed c.